So Paulie is right, but that doesn't make it a bad engine, just means that Dove is BSing, which was apparent in the nodular iron crank comment too.
It's a nice CJ build, all decent but not fancy parts, with a set of heads and intake that flow significantly more than the parts beneath it warrant, but certainly a good setup and would feel like stock 427 but hang in a bit longer IMHO.
My hunch, with that cam, those heads and TW intake, 475 hp giving it the benefit of the doubt, torque will likely climb with the EFI, but not sure power will The cam will really wake it up.
However, the combo is likely a nice tight quench, likely right at the advertised compression, the issue is, I think it wouldn't run on pump gas the way he built it, it'd at least be very finicky unless the cam is retarded 4 degrees.
The issue I have with any of this is not knowing what is in the motor. Slap a 294S in there, if everything is checked out, it'll be a monster, but still short of Dove's numbers IMHO.
Do yourself a favor, slow the boat down a bit. Get inside it. Pay someone like Gessford or your buddy to go through it, make sure it's right. Even if you only check the top end for spring pressure and other parts. It wouldn't surprise me if the support a 294S, the rockers and pushrods too, this could be as cheap simple as a cam change, but checking clearances and spring pressure now will save much heartache
I think it has the potential to be a great engine, but take your time and know what you have from more than just the list of parts
